{"ScriptPreparationCode":"random = () =\u003E Array(50).fill(Math.floor(Math.random() * 9))\r\n\r\narr1 = random();\r\narr2 = random();","TestCases":[{"Name":"Array.prototype.concat","Code":"const other = arr1.concat(arr2);","IsDeferred":false},{"Name":"spread operator","Code":"const other = [ ...arr1, ...arr2]","IsDeferred":false}]}